A fiber link connecting two campus networks is broken. Which of the following tools should an engineer use to detect the exact break point of the fiber link?
Answer is correct:
An Optical Time Domain Reflectometer (OTDR) is a device that tests the integrity of a fiber cable and is used for the building, certifying, maintaining, and troubleshooting fiber optic systems.
Fusion Splicing is a preferred way to join two fibers together by using heat. Whether the fiber was broken or not long enough, a fusion splicer will make your job easier. You would do this after finding where the break is.
A. OTDR (Optical Time Domain Reflectometer) is the correct answer as it is used to detect the exact break point of a fiber link.
B. Tone generator is used to locate cables in a network by generating a tone on the cable.
C. Fusion splicer is used to join two fiber optic cables together.
D. Cable tester is used to test the continuity and performance of copper cables, but not fiber optic cables.
E. PoE injector is used to provide power over Ethernet to network devices, but it does not detect the exact break point of a fiber link.
- An OTDR (Optical Time Domain Reflectometer) works by emitting a short pulse of light into the fiber and then measuring the backscattered light as a function of time. By analyzing the backscattered light, the OTDR can determine the location and characteristics of events, such as bends, breaks, or splices, along the fiber.
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